To the Editor:-Most anesthesia and resuscitation drugs now are supplied in prescratched, easy-to-break vials. However, opening an unscratched vial necessitates the use of a metal file, which is small and not always available, especially during an emergency.

Scratching the neck of one vial with the base of another (Figure 1) allows easy opening of any vial. We have used this method during the past 2 years without any failure. Especially in times of emergency, it may be helpful.

Yitzhak Cohen, M.D.; Lucio Glantz, M.D.; Tiberiu Ezri, M.D.

Department of Anesthesia; Kaplan Hospital

P.O.B. 1, Rehovot 76100; Israel

(Accepted for publication February 4, 1997.)